Hi everyone

Office 365
took office update
Version 2002 (Build 12527.20988 Click-to-Run)
Semi-Annual Enterprise Channel

25.8.20
and the Design tab is faulty it causes Word to Not Responding. And the Style Set does also on the tab. I turned the design tab off and added Watermark and Style Set to a custom tab group but the Style Set still causes Not Responding.

Is anyone else having issues with Word?

See if this thread helps. Word 2013/O365 - Design Tab/Ribbon won't stop refreshing - - Microsoft Community

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Andrew Lockton
Chrysalis Design, Melbourne Australia

Hi Guessed, no that is a known issue and usually watermarks behaves badly as noted but now the actual DESIGN tab if you press it on the ribbon Word just does Not Responding.

I have a custom ribbon with Style Sets, Colours, Fonts - if I try and press Style Sets on this ribbon it does nothing.

This is since yesterday.

But thanks for the help.

I also had this problem and it was related to custom [Quick] Style Sets. I do not currently have it. I may have deleted one or more of the custom styles.